What is a bowel obstruction?

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Quick Answer

A bowel obstruction occurs when the large or small intestine is fully or partially blocked in a way that prevents food, fluid, or gas from passing normally though the intestines, says WebMD. Mechanical obstructions, including tumors and scar tissue, are the most common cases of bowel obstruction.

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Bowel obstruction can be identified through symptoms including cramping, vomiting, diarrhea, constipation, and bloating, according to the Mayo Clinic. Once symptoms are present, obstructions can be diagnosed through abdominal x-rays and CT scans. In many cases, bowel obstructions are simple issues that will get better without treatment but in severe cases, surgery may be required.